Heat pump system for vehicle, and vehicle
By introducing a pilot valve to control multiple switching valves in the vehicle heat pump system, the problem of a large number of electromagnetic actuators is solved, achieving more efficient space utilization and simplified control, and improving the system's flexibility and efficiency.
WO2026032136A1 Publication Date: 2026-02-12SCHAEFFLER TECHNOLOGIES AG & CO KG
5 Cites 0 Cited by
Patent Information
- Application Number
- PCT/CN2025/111937
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-05
- Filing Date
- 2025-07-31
- Publication Date
- 2026-02-12
AI Technical Summary
Technical Problem
In existing vehicle heat pump systems, the large number of electromagnetic actuators increases installation space and control complexity, making it difficult to effectively manage the switching between multiple operating modes.
Method used
Multiple switching valves, including 2/2-way, 3/2-way, and 4/2-way valves, are controlled by pilot valves, reducing the number of electromagnetic actuators and achieving force balance through refrigerant flow pressure, thus simplifying valve control.
Benefits of technology
The total number of electromagnetic actuators was reduced, which lowered the installation space requirements and controller calibration workload, while improving the flexibility and efficiency of the heat pump system.
✦ Generated by Eureka AI based on patent content.
Abstract
A heat pump system for a vehicle, comprising: a compressor (1a), compressing a refrigerant; a refrigerant circuit, forming a closed-loop flow path of the refrigerant; a plurality of switching valves, comprising at least one of a 2 / 2-way valve, a 3 / 2-way valve, and a 4 / 2-way valve, wherein the 2 / 2-way valve is configured to be controlled to block or open the flow path, the 3 / 2-way valve is configured to be controlled to switch the flow path, and the 4 / 2-way valve is configured to be controlled to reverse heat exchange; and a first pilot valve (19), simultaneously controlling at least two of the plurality of switching valves. By using the heat pump system, the total number of solenoid actuators and the number of valves can be decreased. Thus, the mounting space is reduced, and the workload for wiring and controller calibration is reduced.
Need to check novelty before this filing date? Find Prior Art